<template>
	<view class="goods-item">
		<!-- 左边区域 -->
		<view class="goods-item-left">
			<radio :checked="goods.goods_state" color="#00aaff" v-if="showRadio" @click="radioChangeHandler"></radio>
			<image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
		</view>
		<!-- 右边区域-->
		<view class="goods-item-right">
			<view class="goods-name">{{goods.goods_name}}</view>
			<view class="goods-info-box">
				<view class="goods-price">￥{{goods.goods_price | tofixed}}</view>
			  <uni-number-box :min="1" :value="goods.goods_count" @change="numChangeHandler" v-if="showNum"></uni-number-box>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		props: {
			goods: {
				type: Object,
				default: {}
			},
			showRadio: {
				type: Boolean,
				// 如果外界没有指定 show-radio 属性的值，则默认不展示 radio 组件
				default: false,
			},
			//是否展示价格右侧的 NumberBox组件
			showNum: {
				type: Boolean,
			// 如果外界没有指定 show-num 属性的值，则默认不展示  NumberBox  组件
				default: false,
			}
		},
		name:"my-goods",
		data() {
			return {
				defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
			};
		},
		filters: {
			// 把数字处理为带两位小数点的数字
			tofixed(num) {
				//将num转换为数字
				return Number(num).toFixed(2)
			}
		},
		methods: {
			// radio 组件的点击事件处理函数
			radioChangeHandler() {
				// 通过 this.$emit() 触发外界通过 @ 绑定的 radio-change 事件，
				// 同时把商品的 Id 和 勾选状态 作为参数传递给 radio-change 事件处理函数
				this.$emit('radio-change',{
					goods_id: this.goods.goods_id,//商品的id
					goods_state: !this.goods.goods_state//商品最新勾选状态
				})
			},
			//监听到了 NumberBox 组件数量变化的事件
			numChangeHandler(val) {
				// 通过 this.$emit() 触发外界通过 @ 绑定的 num-change 事件
				this.$emit('num-change',{
					goods_id: this.goods.goods_id,
					goods_count: +val
				})
			}
		}
	}
</script>

<style lang="scss">
.goods-item {
	  width: 750rpx;
		box-sizing: border-box;
	  display: flex;
	  padding: 10px 5px;
  	border-bottom: 1px solid #f0f0f0;
	  .goods-item-left {
	    margin-right: 5px;
			display: flex;
			justify-content: space-between;
			align-items: center;
			}
	  .goods-pic {
	    width: 100px;
    	height: 100px;
	    display: block;
	  }
	}
	.goods-item-right {
	  display: flex;
		flex: 1;//占满整个区域
	  flex-direction: column;
	  justify-content: space-between;
	  .goods-name {
	    font-size: 13px;
	  }
		.goods-info-box{
			display: flex;
			align-items: center;
			justify-content: space-between;
			
			.goods-price {
	      font-size: 16px;
	      color: #00aaff;
	    }
		}
	}
</style>
	